From 9db85faf1486534d7838562afd671269ef93bf07 Mon Sep 17 00:00:00 2001
From: Steffen Schuemann <s.schuemann@pobox.com>
Date: Wed, 23 Oct 2019 23:08:15 +0200
Subject: [PATCH] refs #33, fix for lexically_normal

---
 include/ghc/filesystem.hpp | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/include/ghc/filesystem.hpp b/include/ghc/filesystem.hpp
index ce2ca0e..f926d38 100644
--- a/include/ghc/filesystem.hpp
+++ b/include/ghc/filesystem.hpp
@@ -2621,6 +2621,7 @@ GHC_INLINE bool path::is_relative() const
 GHC_INLINE path path::lexically_normal() const
 {
     path dest;
+    bool lastDotDot = false;
     for (const string_type& s : *this) {
         if (s == ".") {
             dest /= "";
@@ -2639,17 +2640,14 @@ GHC_INLINE path path::lexically_normal() const
                 continue;
             }
         }
-        dest /= s;
+        if (!(s.empty() && lastDotDot)) {
+            dest /= s;
+        }
+        lastDotDot = s == "..";
     }
     if (dest.empty()) {
         dest = ".";
     }
-    else {
-        static const path suffix[2] = {"", ".."};
-        if(std::equal(std::reverse_iterator<path::const_iterator>(dest.end()), std::reverse_iterator<path::const_iterator>(dest.begin()), suffix)) {
-            dest._path.pop_back();
-        }
-    }
     return dest;
 }